Vanherzeele H
Appl Opt. 1988 Sep 1;27(17):3608-15. doi: 10.1364/AO.27.003608.
Several drawbacks of a cw-pumped mode-locked Nd:LiYF(4) laser are outlined, and it is shown how to overcome them. For the first time, attention is paid to thermally induced astigmatism and its compensation in a Nd:LiYF(4) rod. An optimized system generates an average output power similar to that of a typical Nd:YAG laser, however, with an increased stability and with pulse durations that are significantly shorter. The higher peak power in Nd:LiYF(4) can result in a higher conversion efficiency in a frequency-doubling process, provided the doubling crystal can handle the high average power. It will be demonstrated that a well-engineered Nd:LiYF(4) system may become the preferred choice for many applications, including seeding regenerative amplifiers and pumping synchronously mode-locked dye laser oscillators and amplifiers.
概述了连续波泵浦锁模Nd:LiYF₄激光器的几个缺点，并展示了如何克服这些缺点。首次关注了Nd:LiYF₄棒中的热致像散及其补偿。一个优化的系统产生的平均输出功率与典型的Nd:YAG激光器相似，然而，其稳定性更高，脉冲持续时间明显更短。如果倍频晶体能够处理高平均功率，Nd:LiYF₄中较高的峰值功率可以在倍频过程中带来更高的转换效率。将证明，一个精心设计的Nd:LiYF₄系统可能成为许多应用的首选，包括为再生放大器提供种子光以及泵浦同步锁模染料激光振荡器和放大器。
